How good is Matrix International SIM card ?

i havent had a good experience with these guys . They are big frauds. I took the connection in 2008 for Italy when I was presented with charges amounting to INR 500/min . While the negotiation was still on they deducted the amount from my credit card as they had all the details . Then I got the card blocked . They then filed a case against me saying that I had defaulted while all I was asking them was to just explain there charges for INR 500/min . I won the case ultimately this year (2014) but it dragged on for almost 6 years . If you want more details about the case I can even send the same. In short not good experience with me at least in 2008 . If they have improved now then I dont know.